Add CAA record to web template

web/templates/admin/add_dns_rec.html

@@ -82,6 +82,7 @@
                                         <option value="PTR" <?php if ($v_type == 'PTR') echo selected; ?>>PTR</option>
                                         <option value="SPF" <?php if ($v_type == 'SPF') echo selected; ?>>SPF</option>
                                         <option value="TLSA" <?php if ($v_type == 'TLSA') echo selected; ?>>TLSA</option>
+                                        <option value="CAA" <?php if ($v_type == 'CAA') echo selected; ?>>CAA</option>
                                     </select>
                                 </td>
                             </tr>